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Rotary sonic surface wave motor

A surface acoustic wave, rotary-type technology, applied in the direction of generators/motors, electrical components, piezoelectric effects/electrostrictive or magnetostrictive motors, etc.

Inactive Publication Date: 2009-08-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on the successful development of the rotary surface acoustic wave motor at home and abroad.

Method used

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  • Rotary sonic surface wave motor
  • Rotary sonic surface wave motor
  • Rotary sonic surface wave motor

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Experimental program
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Embodiment Construction

[0023] The working principle and specific implementation of the rotary surface acoustic wave motor will be described in detail below.

[0024] to combine figure 1 and figure 2 As shown, it is composed of a stator assembly, an interdigital transducer, a rotor and a bracket assembly. It is characterized in that: the stator assembly includes an upper stator half ring 3 and a lower stator half ring 4 opposite to it, wherein the upper stator half ring The opposite end surfaces of the ring 3 and the lower stator half ring 4 respectively form a slope shape indented from the outer ring surface to the inner ring surface; the rotor 1 is clamped in the middle by the upper stator half ring 3 and the lower stator half ring 4, and the rotor 1. The surface is covered with micron-scale bosses; the interdigital transducers include upper and lower two sets of interdigital transducer pairs, which are energy circulation structure, wherein the upper interdigital transducer pair 2 is processed on...

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Abstract

The rotary surface acoustic wave motor of the invention belongs to the field of surface acoustic wave motors. It consists of a stator assembly, an interdigital transducer, a rotor and a bracket assembly. The motor uses the characteristic that the surface acoustic wave can propagate on the curved surface, and designs a semi-annular stator, which excites the surface acoustic wave on its inner surface, sandwiches the rotor between the two stator half-rings, and through the action of friction to rotate The form of movement transmits power. This kind of motor has fast response, high output force, easy miniaturization, and can realize high-precision positioning control.

Description

Technical field: [0001] The rotary surface acoustic wave motor of the invention belongs to the field of surface acoustic wave motors. Background technique: [0002] The surface acoustic wave motor is a new type of motor naturally produced during the development of ultrasonic motors. It is the application of surface acoustic wave technology in ultrasonic motors. Surface waves are used to obtain the elliptical motion of the stator surface particles, and the motion is transmitted to a new type of actuator through the liquid coupling or direct friction coupling between the stator and the slider. At present, linear motors based on surface acoustic wave technology are developing very rapidly in Japan, and there are related reports in China. The article "Research and Development of Surface Acoustic Wave Linear Motor" in Volume 37, Issue 3 of "Micro-motor" magazine in 2004, has made a certain introduction to this linear motor of surface acoustic wave technology. However, there are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/00H02N2/10
Inventor 赵淳生时运来
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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